test/hotspot/jtreg/vmTestbase/nsk/jdi/EventRequest/hashCode/hashcode001.java

/*
 * Copyright (c) 2002, 2018, Oracle and/or its affiliates. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.
 *
 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
 * or visit www.oracle.com if you need additional information or have any
 * questions.
 */

package nsk.jdi.EventRequest.hashCode;

import nsk.share.*;
import nsk.share.jpda.*;
import nsk.share.jdi.*;

import com.sun.jdi.*;
import com.sun.jdi.request.*;
import com.sun.jdi.event.*;
import com.sun.jdi.connect.*;
import java.io.*;
import java.util.*;

/**
 * The debugger application of the test.
 */
public class hashcode001 {

    //------------------------------------------------------- immutable common fields

    final static String SIGNAL_READY = "ready";
    final static String SIGNAL_GO    = "go";
    final static String SIGNAL_QUIT  = "quit";

    private static int waitTime;
    private static int exitStatus;
    private static ArgumentHandler     argHandler;
    private static Log                 log;
    private static Debugee             debuggee;
    private static ReferenceType       debuggeeClass;

    //------------------------------------------------------- mutable common fields

    private final static String prefix = "nsk.jdi.EventRequest.hashCode.";
    private final static String className = "hashcode001";
    private final static String debuggerName = prefix + className;
    private final static String debuggeeName = debuggerName + "a";

    //------------------------------------------------------- test specific fields

    private final static String methodName = "main";
    private final static String fieldName = "exitStatus";

    //------------------------------------------------------- immutable common methods

    public static void main(String argv[]) {
        System.exit(Consts.JCK_STATUS_BASE + run(argv, System.out));
    }

    private static void display(String msg) {
        log.display("debugger > " + msg);
    }

    private static void complain(String msg) {
        log.complain("debugger FAILURE > " + msg);
    }

    public static int run(String argv[], PrintStream out) {

        exitStatus = Consts.TEST_PASSED;

        argHandler = new ArgumentHandler(argv);
        log = new Log(out, argHandler);
        waitTime = argHandler.getWaitTime() * 60000;

        debuggee = Debugee.prepareDebugee(argHandler, log, debuggeeName);

        debuggeeClass = debuggee.classByName(debuggeeName);
        if ( debuggeeClass == null ) {
            complain("Class '" + debuggeeName + "' not found.");
            exitStatus = Consts.TEST_FAILED;
        }

        execTest();

        debuggee.quit();

        return exitStatus;
    }

    //------------------------------------------------------ mutable common method

    private static void execTest() {

        EventRequestManager eventRequestManager = debuggee.VM().eventRequestManager();
        EventRequest eventRequest;

        display("Checking hashCode() method for EventRequest objects");

        for (int i = 0; i < 12; i++) {

            switch (i) {

                case 0:
                       ThreadReference thread = threadByName(methodName);

                       display(".....setting up StepRequest");
                       eventRequest = eventRequestManager.createStepRequest
                                      (thread, StepRequest.STEP_MIN, StepRequest.STEP_INTO);
                       break;

                case 1:
                       display(".....setting up AccessWatchpointRequest");
                       eventRequest = eventRequestManager.createAccessWatchpointRequest
                                      (debuggeeClass.fieldByName(fieldName));
                       break;

                case 2:
                       display(".....setting up ModificationWatchpointRequest");
                       eventRequest = eventRequestManager.createModificationWatchpointRequest
                                      (debuggeeClass.fieldByName(fieldName));
                       break;

                case 3:
                       display(".....setting up ClassPrepareRequest");
                       eventRequest = eventRequestManager.createClassPrepareRequest();
                       break;

                case 4:
                       display(".....setting up ClassUnloadRequest");
                       eventRequest = eventRequestManager.createClassUnloadRequest();
                       break;

                case 5:
                       display(".....setting up MethodEntryRequest");
                       eventRequest = eventRequestManager.createMethodEntryRequest();
                       break;

                case 6:
                       display(".....setting up MethodExitRequest");
                       eventRequest = eventRequestManager.createMethodExitRequest();
                       break;

                case 7:
                       display(".....setting up ThreadDeathRequest");
                       eventRequest = eventRequestManager.createThreadDeathRequest();
                       break;

                case 8:
                       display(".....setting up ThreadStartRequest");
                       eventRequest = eventRequestManager.createThreadStartRequest();
                       break;

                case 9:
                       display(".....setting up VMDeathRequest");
                       eventRequest = eventRequestManager.createVMDeathRequest();
                       break;

                case 10:
                       display(".....setting up ExceptionRequest");
                       eventRequest = eventRequestManager.createExceptionRequest( null, true, true );
                       break;

                case 11:
                       display(".....setting up BreakpointRequest");
                       Method method = methodByName(debuggeeClass, methodName);
                       List locs = null;
                       try {
                           locs = method.allLineLocations();
                       } catch(AbsentInformationException e) {
                           throw new Failure("Unexpected AbsentInformationException while getting ");
                       }
                       Location location = (Location)locs.get(0);
                       eventRequest = eventRequestManager.createBreakpointRequest(location);
                       break;

                default:
                        throw new Failure("Wrong test case : " + i);
            }

            int hCode = eventRequest.hashCode();

            if (hCode == 0) {
                complain("hashCode() returns 0 for EventRequest object " + eventRequest);
                exitStatus = Consts.TEST_FAILED;
            }

            int hCode1 = eventRequest.hashCode();
            if (hCode != hCode1) {
                complain("hashCode() is not consistent for EventRequest object " + eventRequest +
                    "\n\t first value :" + hCode + " ; second value : " + hCode1);
                exitStatus = Consts.TEST_FAILED;
            }

            display("hashCode() returns " + hCode + " for EventRequest object : " +  eventRequest);
            eventRequestManager.deleteEventRequest(eventRequest);
        }


        display("Checking completed!");
        debuggee.resume();
    }

    //--------------------------------------------------------- test specific methods

    private static Method methodByName(ReferenceType refType, String methodName) {
        List methodList = refType.methodsByName(methodName);
        if (methodList == null) return null;

        Method method = (Method) methodList.get(0);
        return method;
    }

    static private ThreadReference threadByName(String name) {

        List all = debuggee.VM().allThreads();
        ListIterator li  = all.listIterator();

        while (li.hasNext()) {
            ThreadReference thread = (ThreadReference) li.next();
            if (thread.name().equals(name))
                return thread;
        }
        throw new Failure("Thread IS NOT found : " + name);
    }

}
//--------------------------------------------------------- test specific classes